12199618747 has 2 divisors, whose sum is σ = 12199618748. Its totient is φ = 12199618746.

The previous prime is 12199618633. The next prime is 12199618771. The reversal of 12199618747 is 74781699121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12199618747 is a prime.

It is a super-3 number, since 3×12199618747³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12199618777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6099809373 + 6099809374.

It is an arithmetic number, because the mean of its divisors is an integer number (6099809374).

Almost surely, 2^12199618747 is an apocalyptic number.

12199618747 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199618747 is an equidigital number, since it uses as much as digits as its factorization.

12199618747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 55.

The spelling of 12199618747 in words is "twelve billion, one hundred ninety-nine million, six hundred eighteen thousand, seven hundred forty-seven".